How many grams of ZnCl2 are produced from 75.00 g of ZnO in the reaction? ZnO + 2HCl → ZnCl2 + H2O

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Summarize possible ways in which phases of matter could combine to form a solution.

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.